:root {
  --theme: #1890ff;
  --borderColor: #ccc;
}

*,
input[type=checkbox],
input[type=radio] {
  margin: 0;
  padding: 0;
}

.fl {
  float: left;
}

.fr {
  float: right;
}

.clearfix:after {
  content: "";
  display: block;
  height: 0;
  clear: both;
}

.container {
  padding: 10px;
}

/* tab切换 */
.tab-wrapper {
  position: relative;
  display: flex;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--borderColor);
}

.tab-wrapper .line {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 46px;
  height: 2px;
  margin-bottom: 0;
  background: var(--theme);
  transition: .5s;
}

.tab-wrapper .item {
  margin-bottom: 0;
  padding: 5px 10px;
  cursor: pointer;
}

.tab-wrapper .item.is-active {
  color: var(--theme);
}

/* 表单 */
.form-item {
  display: flex;
  margin-bottom: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--borderColor);
}

.form-item-group {
  border-bottom: 1px dashed var(--borderColor);
}
.form-item-group .form-item {
  border-bottom: 0;
}

.form-item-title {
  width: 150px;
  margin: 0 10px 0 0;
  text-align: right;
}

.form-item-content {
  flex: 1;
}

.form-item-content input {
  margin-right: 10px;
}

.content-item {
  display: none;
}

.content-item:first-of-type {
  display: block;
}

.input-inner {
  width: 500px;
}

.friendship-link {
  width: 700px;
}

.preview-img {
  max-width: 200px;
}

.btn-submit {
  display: block;
  width: 200px;
  height: 40px;
  margin-top: 20px;
  border: 0;
  outline: 0;
  background: var(--theme);
  border-radius: 5px;
  color: #fff;
  cursor: pointer;
}
